Preparation method of ultrahigh molecular weight polyethylene fiber
An ultra-high molecular weight, polyethylene fiber technology, applied in the direction of single-component polyolefin man-made filament, spinning solution preparation, wet spinning, etc. structure and other problems, to achieve the effect of reducing the breaking strength and reducing the dosage
Active Publication Date: 2010-07-07
CHANGSHU SUPERFIBER
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The invention relates to a method of preparing ultrahigh molecular weight polyethylene fiber through gel spinning method. The method comprises the following steps: (1) preparing gel protofilament of ultrahigh molecular weight polyethylene; and (2) processing the gel protofilament through extracting, drying and hot drawing to obtain the ultrahigh molecular weight polyethylene fiber. The method is characterized in that the method also comprises the step of pre-drawing the gel protofilament obtained in the step (1) before the step (2), wherein the pre-drawing time is 2.2-24 times and the total hot drawing time in the step (2) is 30-45 times. The method of the invention can be used to obtain ultrahigh molecular weight polyethylene fiber product with low size and high breaking strength and the production cost is low.
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Property | Measurement | Unit |
Boiling point | 125.0 ~ 155.0 | °C |
Monofilament denier | 1.0 ~ 2.0 | D |
Breaking strength | >= 40.0 | cN/dtex |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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